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标题: 看代码学Android ：如何处理Touch？ [打印本页]
作者: zdwang    时间: 2011-12-23 02:09
标题: 看代码学Android ：如何处理Touch？
  1. public class test2 extends Activity implements OnTouchListener, OnClickListener{
  2.     /** Called when the activity is first created. */
  3.     
  4.     GestureDetector mGestureDetector;
  5.     @Override
  6.     public void onCreate(Bundle savedInstanceState) {
  7.         super.onCreate(savedInstanceState);
  8.         setContentView(R.layout.main);
  9.         
  10.         Button btn = (Button)this.findViewById(R.id.button1);
  11.         btn.setOnTouchListener(this);
  12.         btn.setOnClickListener(this);
  13.        
  14.         //创建一个手势dectector
  15.         mGestureDetector = new GestureDetector(this, new CalendarGestureListener());
  16.     }

  18.     @Override
  19.     public boolean onTouch(View v, MotionEvent event) {
  20.         if (mGestureDetector.onTouchEvent(event)) {
  21.             return true;
  22.         }
  23.         return super.onTouchEvent(event);
  24.     }
  25.     
  26.     
  27.      class CalendarGestureListener extends GestureDetector.SimpleOnGestureListener {

  29.         /* (non-Javadoc)
  30.          * @see android.view.GestureDetector.SimpleOnGestureListener#onFling(android.view.MotionEvent, android.view.MotionEvent, float, float)
  31.          */
  32.         @Override
  33.         public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
  34.                 float velocityY) {
  35.             Log.v("touch", "x=" + Float.toString(e1.getX()) + " x2=" + Float.toString(e2.getX()) );
  36.             // TODO Auto-generated method stub
  37.             return super.onFling(e1, e2, velocityX, velocityY);
  38.         }
  39.      }


  42.     @Override
  43.     public void onClick(View arg0) {
  44.         // TODO Auto-generated method stub
  45.         Log.v("touch", "Hello, Click Me" );

  47.     }
  48. }




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